More than 40 animatronic dinosaurs that are BIGGER and BADDER will be coming to Brookfield Zoo in 2020. Dinos Everywhere! will feature acres of earth shakers, including the largest—Argentinosaurus—that was estimated to measure more than 100 feet in length and weigh up to 110 tons. Zoo goers will be able to search for the amazing life-like animatronics that will be located around the park. Throughout the summer, zoo goers will be able to take part in dino-themed interactive activities, including a scavenger hunt.